OGX Extra Strength Moroccan Argan Oil Hair Mask 177 ml OGX Extra Strength Hydrate and Repair Plus Moroccan Argan Oil Hair Mask gives damaged, dry hair a refreshed look and feel of silky perfection and radiant shine. Enriched with water-based silk proteins, this extra-hydrating mask smoothes hair by penetrating strands from the inside out. It also improves hair strength and elasticity and ensures soft, manageable curls.